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<html lang="en">
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>Promise封装 | 16 - 回调函数【异步执行】</title>
	<script src="./promise.js"></script>
</head>
<body>
	<script>
		let p1 = new Promise((resolve,reject)=>{
			//resolve('ok')
			reject('err')
			console.log(111);
		})
		p1.then((value)=>{
			console.log(222);
		},reason =>{
			console.log(444);
		})
		console.log(333);
	</script>
</body>
</html>